BMW K bikes (Bricks)

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1Back to top Go down   K1100 exhaust re-install Empty K1100 exhaust re-install on Tue Apr 24, 2018 9:18 am

DeRodster

DeRodster
Life time member
Life time member
Hi All,

 Just at the cleanup stage and am thinking around the various exhaust parts to allow re-install on my K.

 I have new studs and nuts and copper washers.
I don't recall seeing any copper washer come out when I removed exhaust all those months ago, so I guess they are still stuck in the ports. Can i just jack 'em out with a flathead or should I be more cautious

Then decided to clean the exhaust and silencer with metal polish ...didn't seem to be getting too far with that idea, so moved to fine wet n dry. Worked a treat, and all those years of grot n grime are slowly coming off and showing a gleaming stainless surface. I'm still amazed at all the little blobs of road tar !!

Just at the finishing stages of rebuild and hope to be back on tarmac soon

adios
Rod


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

2Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 9:21 am

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
Rod

Get new rubber mounts for it, don't reuse them.

I always use wet and dry on the headers, works better than anything.

Wish we could get you over to K Fest.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 96,650 miles
1983 K100RS 0011175 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell
    

3Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 10:18 am

RicK G

RicK G
VIP
VIP
Where the 3 front pipes run fairly parallel put a jubilee clamp around them to stop the vibration induced cracking. Tighten up all the studs a bit at a time, nice and evenly and before you start to get to the stage of crushing the copper washers put the rear mount in position and make all those bolts firm. That way you are keeping the whole system in its natural position.


__________________________________________________
"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats."  from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

4Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 11:00 am

DeRodster

DeRodster
Life time member
Life time member
thanks for replies lads,
 Yes, you might yet Olaf, about 150 days to go and I'll be free to do what I like ( Other 'alf permitting ;-))
Good point re new rubber mounts...hadn't thought of that in particular and I have been thinking of a new rubber gasket for rear drive unit...

On mine it's 4 pipes RickG, and they are all welded in place so no probs there. I'll have a grovel about under it later and see if I can spot any old copper rings in the ports.

Just taking my time and hopefully ensuring all is correct and in the right place, so far so good

R


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

5Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 11:30 am

duck

duck
Life time member
Life time member
The old copper gaskets never fall out in my experience.  I suspect because their diameter increases ever so slightly when they are initially "crushed" upon installation.

I've never bothered to replace them.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

6Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 2:31 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
+1 on what the Duck said.  I have never replaced those gaskets on any of my bikes and never had a leak there.

I used 2500 wet or dry on my header pipes, made them look nicely polished with minimum expenditures of time and effort. 

Looked the treat...for about 30 miles.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

7Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 4:20 pm

DeRodster

DeRodster
Life time member
Life time member
Ok on all that
Am putting 8 new studs in
Plan to use a little thread lock, though I can't imagine they'll fall out. Time will tell i guess


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

8Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 4:42 pm

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
I didn't use threadlock...used copper paste not that tis worth a lot in there.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 96,650 miles
1983 K100RS 0011175 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell
    

9Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 4:52 pm

DeRodster

DeRodster
Life time member
Life time member
Oh indeed, i love that copper grease....it goes on everything, except my toast....i reserve that for Kerrygold  ;-)

And i forgot to mention an obvious plus , or at least something that will ease input...the new studs take a hex drive and the new nuts are copper. I'm looking at the old ones, all rusted and nasty,  and thanking a higher being that i got them all out intact & without tooo much trouble


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

10Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 5:49 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I used stainless studs and nuts with copious amounts of copper anti-seize.  No problem removing them.


Speaking of copper.  Check the "copper" nuts.  The ones I bought from Max BMW were made of some mysterious magnetic copper that quickly rusted.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

11Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Tue Apr 24, 2018 6:11 pm

88

88
Life time member
Life time member
DeRodster, the copper rings in the K1100rs were invisible to me due to soot. I got a cheap dentists type tool in the € shop and picked them out....turned out there were two sets in there. if you are buying studs make sure they are the right length (They're not the same as 8v ones).

Looking forward to seeing you "out and about".
W.


__________________________________________________
K1100 exhaust re-install Ir-log1188....May contain nuts!K1100 exhaust re-install Ir-log11

"The world is a book and those who do not travel read only one page." - St. Augustine from 1600 years ago & still true!

Bike: K100LT 1988. 0172363. AKA the Bullion Brick! Mods: k1100 screen and stands.
K1: 1990. 6374189. Custom Stealth Black paint.
    

12Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Wed Apr 25, 2018 5:36 am

DeRodster

DeRodster
Life time member
Life time member
Copper nuts my eye, unless the laws of physics have changed !

K1100 exhaust re-install Copper10

Onwards and upwards, the quest continues ;-)


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

13Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Wed Apr 25, 2018 7:05 am

Dai

Dai
Life time member
Life time member
Of course the laws of physics have changed. This is Ireland after all! Shocked


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

14Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Wed Apr 25, 2018 7:45 am

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
@DeRodster wrote:Copper nuts my eye, unless the laws of physics have changed !

K1100 exhaust re-install Copper10

Onwards and upwards, the quest continues ;-)

Superglue.....



Can you imagine the fun I had one day when I bought a stainless steel saucepan clearly marked suitable for induction hobs then when I took it home it wouldn't work. Someone in the shop when I brought it back could not understand how it couldn't work....'its a saucepan, you put on the cooker, there is nothing in it to work' was all they kept saying. She certainly had an antimagnetic personality.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 96,650 miles
1983 K100RS 0011175 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell
    

15Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Wed Apr 25, 2018 6:47 pm

Laitch

Laitch
Life time member
Life time member
@Point-Seven-five wrote: Check the "copper" nuts.  The ones I bought from Max BMW were made of some mysterious magnetic copper that quickly rusted.
@DeRodster wrote:Copper nuts my eye, unless the laws of physics have changed !
More tragic victims of shiny things.
They aren't sold as "copper nuts" on the MAX site. They might be a new BMW hue–Kardashian Bronze. Laughing


__________________________________________________
1995 K75T 73,000 miles
K1100 exhaust re-install Usa-lo10
    

16Back to top Go down   K1100 exhaust re-install Empty Re: K1100 exhaust re-install on Thu Apr 26, 2018 6:20 am

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
I have bought a few sets of these nuts and studs......'copper' is only a coating. Like brass door furniture.....'brass' is often 'brassed' as in coated steel. Always bring a magnet.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 96,650 miles
1983 K100RS 0011175 Fricka 29,495 miles Damn K Pox Its a Bat outta Hell
    

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